Principal Full-Stack Developer (.Net+Angular)

Luxoft; Województwo pomorskie; On-site; PLN 230,000 - 320,000; Full time

Job summary

Luxoft in Poland is seeking passionate developers to craft innovative financial software as part of a small, agile team of technologists.

You will design, code, test, deploy and maintain scalable C#/.NET and Angular applications for risk management and portfolio modelling, focusing on high availability, performance, and robust engineering practices in production environments. Collaborate closely with stakeholders and participate in code reviews.

Qualifications

• Must have deep expertise in C#/.NET and strong frontend experience with Angular
• Experience designing scalable applications for financial services or hedge funds is a plus
• Solid understanding of algorithms, data structures, and OOD/OOP principles
• Strong knowledge of SOLID principles and design patterns
• Experience with multi-threaded programming and high-availability systems
• Excellent written and verbal English communication skills
• Ability to collaborate with stakeholders and participate in code reviews

Responsibilities

• Collaborate with business stakeholders to understand requirements and translate them into technical solutions
• Design, develop, test, deploy, and maintain scalable applications using C#/.NET and Angular
• Enhance and extend existing functionality based on user feedback and evolving business needs
• Develop complex business logic and analytical calculations to support capital usage and scenario modeling workflows
• Build and maintain interactive data visualizations, reports, and charts
• Develop and integrate REST/HTTP-based services and messaging solutions where required
• Troubleshoot, debug, and resolve production issues while ensuring high availability and performance
• Participate in code reviews, technical design discussions, and continuous improvement initiatives
• Work closely with a small, cross-functional team to deliver high-quality software
• Ensure software quality through unit testing, integration testing, and adherence to engineering best practices

Skills

C#/.NET

Angular

TypeScript

Front-end development

Object-oriented design

SOLID principles

Multithreading

REST/HTTP services

English communication

Team collaboration

Job description

Project description

We are looking for passionate and creative developers eager to craft innovative products and embrace new technologies. You will be part of a small, agile, and highly skilled team of technologists who are building next generation of solutions for Risk Management team and Portfolio Managers.To thrive in our team, you should possess an independent mindset while enjoying a collaborative working environment. We value candidates with full software lifecycle experience, encompassing requirements gathering, implementation, testing, release, and ongoing support.

Responsibilities

• Collaborate with business stakeholders to understand requirements and translate them into technical solutions
• Design, develop, test, deploy, and maintain scalable applications using C#/.NET and Angular
• Enhance and extend existing functionality based on user feedback and evolving business needs
• Develop complex business logic and analytical calculations to support capital usage and scenario modeling workflows
• Build and maintain interactive data visualizations, reports, and charts
• Develop and integrate REST/HTTP-based services and messaging solutions where required
• Troubleshoot, debug, and resolve production issues while ensuring high application availability and performance
• Participate in code reviews, technical design discussions, and continuous improvement initiatives
• Work closely with a small, cross-functional team to deliver high-quality software
• Ensure software quality through unit testing, integration testing, and adherence to engineering best practices

SKILLS

Must have

• Minimum 8 years of software engineering experience, preferably within the hedge fund or financial services industry
• Deep expertise in C#/.NET
• At least 4 years of frontend development experience
• Strong knowledge of Angular and TypeScript, with hands-on experience within the last 3 years
• Strong understanding of computer science fundamentals, including algorithms and data structures
• Deep understanding of object-oriented design and programming (OOD/OOP)
• Solid knowledge of SOLID principles and design patterns
• Experience with multi-threaded and concurrent programming
• Proven ability to design, build, and support scalable, high-availability applications in production environments
• Strong passion for backend architecture and application development, with a commitment to continuous learning and improvement
• Excellent written and verbal English communication skills
• Strong collaboration and stakeholder management skills
• Independent, proactive mindset with a high level of ownership and accountability

Nice to have

• Experience with Portfolio and Risk Management systems (e.g., What-If analysis, scenario modeling, real-time pricing)
• Familiarity with financial instruments (equities, derivatives, fixed income, etc.)
• Strong grasp of RDBMS concepts, data modeling, and database design
• Practice of Test-Driven Development (TDD) and performance profiling across the stack